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Comparison of optical, piezoelectric, PVDF (polymer) and our dual-element piezoflex PZT (composite materials) ultrasound transducer.
| Detector type | Sensitivity Nep (mPa/Hz1/2) | d33 (pC/N) | BW (%) |
|---|---|---|---|
| Piezoelectric | 0.2 | 410 | 60–80 |
| Optical | 78 | — | 90 |
| PVDF | 14.4 | 13–28 | 163.6 |
| PZT-5H 1–3 composite | 7.1 | 550 | 99.3 |
